




Supports DDR5 Memory, Dual Channel DDR5 8000+ MT/s (OC)
Ultra Performance: Direct 7+2+1 Power System with P-PAK, 8-pin CPU power connector, Core Boost, Memory Boost, 6-layer PCB made by 2oz thickened copper
Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, and additional choke thermal pads are built for high performance system and non-stop experience
EZ DIY: EZ M.2 Clip II, EZ PCIe Clip II, and EZ Antenna
PRO B840M-P WIFI6E offers a simple design with a harmonious silver color scheme that perfectly matches both white and black PC builds. It is engineered with many exclusive features of MSI, a Wi-Fi 6E with EZ Antenna, 2.5G LAN, and PCIe 4.0 M.2, ready for the AMD Ryzen™ 9000 series processors.
The PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency.
MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before.
The new EZ PCIe Clip II, located on the first slot, features the rebounding force mechanism that allows for easy removal of the graphics card by pressing the tail-like lock with one finger. Due to this exquisite design, users can uninstall the graphics cards effortlessly, even in the cramped case spaces.
Unleash and sustain the maximum performance with a VRM design built with a total of 7+2+1 digital power phases. With an 8-pin power connector, PRO B840M-P WIFI6E is ready for the challenge of heavy-loading tasks.
The PCB design has been optimized for higher bandwidth and faster transfer speeds, which is also beneficial for reliable circuit transmission.
A huge step of DDR performance enhancement with the latest DDR5 memory. Combines with dedicated SMT welding process and MSI Memory Boost technology, PRO B840M-P WIFI6E is ready to deliver the world-class memory performance.
Transient Voltage Suppressors (TVS) are safety devices used to protect against excessive voltage. All motherboard models of MSI are equipped with TVS. When the voltage abnormally rises, the TVS switches from a high-resistance state to a low-resistance state, diverting the excessive voltage to ground. This helps prevent circuit damage caused by high voltage.
Connect and synchronize with MSI coolers and cases with strategically positioned pin-header locations including a dedicated pump-fan header.
HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI's premium network solution provides incredible data transfer speed for demanding users.
Supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
Supports DDR5 Memory, Dual Channel DDR5 8000+ MT/s (OC)
Ultra Performance: Direct 7+2+1 Power System with P-PAK, 8-pin CPU power connector, Core Boost, Memory Boost, 6-layer PCB made by 2oz thickened copper
Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, and additional choke thermal pads are built for high performance system and non-stop experience
EZ DIY: EZ M.2 Clip II, EZ PCIe Clip II, and EZ Antenna
Lightning Fast Game experience: PCIe 4.0 slot and Lightning Gen 4 x4 M.2
2.5G LAN with Wi-Fi 6E Solution: the remarkable solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission
Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience
Specifications
Chipset | AMD B840 |
CPU Support | Supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors |
Socket | AM5 |
Memory | 4× DDR5 UDIMM, Maximum Memory Capacity 256GB |
Memory Support | DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s |
Max. Overclocking Frequency | • 1DPC 1R: Up to 8000+ MT/s |
• 1DPC 2R: Up to 6400+ MT/s | |
• 2DPC 1R: Up to 6400+ MT/s | |
• 2DPC 2R: Up to 5600+ MT/s | |
Memory Features | Supports AMD POR Speed and JEDEC Speed |
Supports Memory Overclocking and AMD EXPO™ | |
Supports Dual-Channel Mode | |
Supports Non-ECC, Un-buffered Memory | |
Supports CUDIMM (Clock Driver Bypass Mode Only) | |
Onboard Graphics | 1× HDMI™ (HDMI™ 2.1, up to 4K@60Hz*) |
Expansion Slots | 1× PCIe 4.0 x16 (CPU) |
1× PCIe 3.0 x1 (Chipset) | |
PCIe x16 Support | PCIe 4.0 x16 (Ryzen™ 9000/7000) |
PCIe 4.0 x8 (Ryzen™ 8700/8600/8400) | |
PCIe 4.0 x4 (Ryzen™ 8500/8300) | |
Audio | Realtek® ALC897, 7.1-Channel High Definition Audio |
Storage | 2× M.2 (PCIe 4.0 x4) |
4× SATA 6Gb/s | |
RAID Support | RAID 0, 1 & 10 (SATA) |
RAID 0 & 1 (M.2 NVMe) | |
USB Ports | Rear: 4× USB 2.0, 2× USB 5Gbps Type-A, 1× USB 10Gbps Type-A, 1× USB 10Gbps Type-C |
Front: 4× USB 2.0, 2× USB 5Gbps Type-A, 1× USB 5Gbps Type-C | |
LAN | Realtek® 8125D 2.5Gbps LAN |
Wireless & Bluetooth | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) |
Bluetooth® 5.3 | |
Internal I/O | 1× 24-pin ATX Power |
1× 8-pin CPU Power | |
1× CPU Fan | |
1× Pump/System Fan | |
3× System Fan | |
2× Front Panel | |
1× Chassis Intrusion | |
1× Front Audio | |
1× COM Port | |
1× JDASH | |
3× ARGB Gen2 Headers | |
1× RGB Header | |
1× TPM Header | |
4× USB 2.0 Ports | |
2× USB 5Gbps Type-A Ports | |
1× USB 5Gbps Type-C Port | |
LED Features | 4× EZ Debug LED |
1× EZ Memory Detection LED | |
Operating System | Windows® 11 64-bit |
Form Factor | Micro-ATX (mATX) |
PCB Dimensions | 243.84 × 243.84 mm |
Estimated Motherboard Weight | Approx. 0.75–0.90 kg* |
Estimated Package Weight | Approx. 1.20–1.40 kg* |
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